Effect Analysis of Different Exhaust Velocity on Fire Smoke Control in Subway Tunnel

Xin Han; Xiao Ming Gao; Bei Hua Cong

doi:10.4028/www.scientific.net/AMR.424-425.1224

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 424-425Effect Analysis of Different Exhaust Velocity on...

Effect Analysis of Different Exhaust Velocity on Fire Smoke Control in Subway Tunnel

Abstract:

Taking a subway tunnel as the research object and based on the CFD simulation method, this paper adopts a large eddy simulation analysis software FDS to simulate and analyze the effect of exhaust velocity on fire smoke control under the condition of the same longitudinal ventilation velocity in subway tunnel. The simulated results can provide some reference to design institutes in the selection of exhaust fan. While the longitudinal ventilation velocity set as 1m/s, the simulation results demonstrate that a quite good smoke control effect could be achieved when the exhaust velocity reaches 5 m/s in the smoke exhaust duct

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Periodical:

Advanced Materials Research (Volumes 424-425)

Pages:

1224-1227

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.424-425.1224

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Online since:

January 2012

Authors:

Xin Han, Xiao Ming Gao, Bei Hua Cong

Keywords:

FDS, Smoke Exhaust Duct, Subway Tunnel, Ventilation Velocity

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References

[1] Lu Ping, Cong Behua, Liao Guangxuan, et al: Study of Fire Smoke Flow Characteristics of Horizontal Tunnel Using Longitudinal Ventilation. Engineering Science, 6, 59-64 (2004).

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[2] Xu Lin, Zhang Xu: Effect of smoke outlet characteristics on smoke control for highway tunnel with central smoke extraction systems. Heating Ventilating & Air Conditioning, 3, 76-79 (2008).

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